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<a name="1" href="#1">1</a>   <strong class="jxr_keyword">package</strong> org.oleg.fcs.util;
<a name="2" href="#2">2</a>   
<a name="3" href="#3">3</a>   <strong class="jxr_keyword">import</strong> org.apache.commons.logging.Log;
<a name="4" href="#4">4</a>   <strong class="jxr_keyword">import</strong> org.apache.commons.logging.LogFactory;
<a name="5" href="#5">5</a>   
<a name="6" href="#6">6</a>   <strong class="jxr_keyword">import</strong> java.util.Map;
<a name="7" href="#7">7</a>   <strong class="jxr_keyword">import</strong> java.util.List;
<a name="8" href="#8">8</a>   <strong class="jxr_keyword">import</strong> java.util.ArrayList;
<a name="9" href="#9">9</a>   <strong class="jxr_keyword">import</strong> java.util.Arrays;
<a name="10" href="#10">10</a>  <strong class="jxr_keyword">import</strong> java.util.regex.Pattern;
<a name="11" href="#11">11</a>  <strong class="jxr_keyword">import</strong> java.net.URLClassLoader;
<a name="12" href="#12">12</a>  <strong class="jxr_keyword">import</strong> java.net.URL;
<a name="13" href="#13">13</a>  <strong class="jxr_keyword">import</strong> java.io.File;
<a name="14" href="#14">14</a>  <strong class="jxr_keyword">import</strong> java.io.IOException;
<a name="15" href="#15">15</a>  <strong class="jxr_keyword">import</strong> java.lang.reflect.Method;
<a name="16" href="#16">16</a>  
<a name="17" href="#17">17</a>  <em class="jxr_javadoccomment">/**</em>
<a name="18" href="#18">18</a>  <em class="jxr_javadoccomment"> * TODO: Class Description</em>
<a name="19" href="#19">19</a>  <em class="jxr_javadoccomment"> *</em>
<a name="20" href="#20">20</a>  <em class="jxr_javadoccomment"> * @author Oleg Ilyenko</em>
<a name="21" href="#21">21</a>  <em class="jxr_javadoccomment"> */</em>
<a name="22" href="#22">22</a>  @SuppressWarnings(<span class="jxr_string">"unchecked"</span>)
<a name="23" href="#23">23</a>  <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">abstract</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../org/oleg/fcs/util/ClassLoaderUtil.html">ClassLoaderUtil</a> {
<a name="24" href="#24">24</a>  
<a name="25" href="#25">25</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> Log log = LogFactory.getLog(ClassLoaderUtil.<strong class="jxr_keyword">class</strong>);
<a name="26" href="#26">26</a>  
<a name="27" href="#27">27</a>  <em class="jxr_comment">//    public static ClassLoader CLASS_LOADER;</em>
<a name="28" href="#28">28</a>  
<a name="29" href="#29">29</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> ClassLoader ORIGINAL_CLASS_LOADER;
<a name="30" href="#30">30</a>  
<a name="31" href="#31">31</a>      <em class="jxr_javadoccomment">/**</em>
<a name="32" href="#32">32</a>  <em class="jxr_javadoccomment">     * Loads libraries from the &lt;code&gt;path&lt;/code&gt;.&lt;br&gt;</em>
<a name="33" href="#33">33</a>  <em class="jxr_javadoccomment">     * You can use * (star) as wildcard of set of provided placeholders in path.</em>
<a name="34" href="#34">34</a>  <em class="jxr_javadoccomment">     *</em>
<a name="35" href="#35">35</a>  <em class="jxr_javadoccomment">     * @param path where to search</em>
<a name="36" href="#36">36</a>  <em class="jxr_javadoccomment">     * @param placeholders they will be fetched in path</em>
<a name="37" href="#37">37</a>  <em class="jxr_javadoccomment">     */</em>
<a name="38" href="#38">38</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">void</strong> loadLibraries(String path, Map&lt;String, String&gt; placeholders) {
<a name="39" href="#39">39</a>          String workingPath = path;
<a name="40" href="#40">40</a>          <strong class="jxr_keyword">for</strong> (String ph : placeholders.keySet()) {
<a name="41" href="#41">41</a>              workingPath = workingPath.replaceAll(<span class="jxr_string">"&#92;&#92;$&#92;&#92;{"</span> + ph + <span class="jxr_string">"&#92;&#92;}"</span>, placeholders.get(ph));
<a name="42" href="#42">42</a>          }
<a name="43" href="#43">43</a>  
<a name="44" href="#44">44</a>          File f = <strong class="jxr_keyword">new</strong> File(workingPath);
<a name="45" href="#45">45</a>          String name = f.getName();
<a name="46" href="#46">46</a>          Pattern filePath = Pattern.compile(name.replaceAll(<span class="jxr_string">"&#92;&#92;*"</span>, <span class="jxr_string">".*"</span>));
<a name="47" href="#47">47</a>          File pathDir = f.getParentFile();
<a name="48" href="#48">48</a>  
<a name="49" href="#49">49</a>          <strong class="jxr_keyword">try</strong> {
<a name="50" href="#50">50</a>              List&lt;URL&gt; filesToProcess = <strong class="jxr_keyword">new</strong> ArrayList&lt;URL&gt;();
<a name="51" href="#51">51</a>              <strong class="jxr_keyword">if</strong> (pathDir.exists()) {
<a name="52" href="#52">52</a>                  <strong class="jxr_keyword">for</strong> (File fInDir : pathDir.listFiles()) {
<a name="53" href="#53">53</a>                      <strong class="jxr_keyword">if</strong> (filePath.matcher(fInDir.getName()).matches()) {
<a name="54" href="#54">54</a>                          filesToProcess.add(fInDir.toURI().toURL());
<a name="55" href="#55">55</a>                      }
<a name="56" href="#56">56</a>                  }
<a name="57" href="#57">57</a>              }
<a name="58" href="#58">58</a>  
<a name="59" href="#59">59</a>  <em class="jxr_comment">//            if (CLASS_LOADER == null) {</em>
<a name="60" href="#60">60</a>  <em class="jxr_comment">//                CLASS_LOADER = ClassLoaderUtil.class.getClassLoader();</em>
<a name="61" href="#61">61</a>  <em class="jxr_comment">//            }</em>
<a name="62" href="#62">62</a>  
<a name="63" href="#63">63</a>  <em class="jxr_comment">//            URLClassLoader cl = new URLClassLoader(filesToProcess.toArray(new URL[filesToProcess.size()]), CLASS_LOADER);</em>
<a name="64" href="#64">64</a>  <em class="jxr_comment">//            CLASS_LOADER = cl;</em>
<a name="65" href="#65">65</a>  
<a name="66" href="#66">66</a>  
<a name="67" href="#67">67</a>              <em class="jxr_comment">// Add new Jars to the system classpath !!! (little hack, but works)</em>
<a name="68" href="#68">68</a>              URLClassLoader sysloader = (URLClassLoader)ClassLoader.getSystemClassLoader();
<a name="69" href="#69">69</a>              Class sysclass = URLClassLoader.<strong class="jxr_keyword">class</strong>;
<a name="70" href="#70">70</a>              Method method = sysclass.getDeclaredMethod(<span class="jxr_string">"addURL"</span>, <strong class="jxr_keyword">new</strong> Class[]{URL.<strong class="jxr_keyword">class</strong>});
<a name="71" href="#71">71</a>              method.setAccessible(<strong class="jxr_keyword">true</strong>);
<a name="72" href="#72">72</a>              <strong class="jxr_keyword">for</strong> (URL u : filesToProcess) {
<a name="73" href="#73">73</a>                  method.invoke(sysloader, u);
<a name="74" href="#74">74</a>              }
<a name="75" href="#75">75</a>  
<a name="76" href="#76">76</a>              log.debug(<span class="jxr_string">"Loaded libraries (in path "</span> + path + <span class="jxr_string">"): "</span> + filesToProcess);
<a name="77" href="#77">77</a>          } <strong class="jxr_keyword">catch</strong> (Throwable e) {
<a name="78" href="#78">78</a>              log.error(<span class="jxr_string">"Error during loading lib in path "</span> + path, e);
<a name="79" href="#79">79</a>          }
<a name="80" href="#80">80</a>  
<a name="81" href="#81">81</a>      }
<a name="82" href="#82">82</a>  
<a name="83" href="#83">83</a>  <em class="jxr_comment">//    public static void changeContextClassLoader() {</em>
<a name="84" href="#84">84</a>  <em class="jxr_comment">//        if (CLASS_LOADER != null) {</em>
<a name="85" href="#85">85</a>  <em class="jxr_comment">//            ORIGINAL_CLASS_LOADER = Thread.currentThread().getContextClassLoader();</em>
<a name="86" href="#86">86</a>  <em class="jxr_comment">//            Thread.currentThread().setContextClassLoader(CLASS_LOADER);</em>
<a name="87" href="#87">87</a>  <em class="jxr_comment">//        }</em>
<a name="88" href="#88">88</a>  <em class="jxr_comment">//    }</em>
<a name="89" href="#89">89</a>  <em class="jxr_comment">//</em>
<a name="90" href="#90">90</a>  <em class="jxr_comment">//    public static void restoreContextClassLoader() {</em>
<a name="91" href="#91">91</a>  <em class="jxr_comment">//        if (ORIGINAL_CLASS_LOADER != null) {</em>
<a name="92" href="#92">92</a>  <em class="jxr_comment">//            Thread.currentThread().setContextClassLoader(ORIGINAL_CLASS_LOADER);</em>
<a name="93" href="#93">93</a>  <em class="jxr_comment">//        }</em>
<a name="94" href="#94">94</a>  <em class="jxr_comment">//    }</em>
<a name="95" href="#95">95</a>  <em class="jxr_comment">//</em>
<a name="96" href="#96">96</a>  <em class="jxr_comment">//    public static Class loadClass(String name) throws ClassNotFoundException {</em>
<a name="97" href="#97">97</a>  <em class="jxr_comment">//        if (CLASS_LOADER != null) {</em>
<a name="98" href="#98">98</a>  <em class="jxr_comment">//            return CLASS_LOADER.loadClass(name);</em>
<a name="99" href="#99">99</a>  <em class="jxr_comment">//        } else {</em>
<a name="100" href="#100">100</a> <em class="jxr_comment">//            throw new IllegalStateException("No custom class loader !!!");</em>
<a name="101" href="#101">101</a> <em class="jxr_comment">//        }</em>
<a name="102" href="#102">102</a> <em class="jxr_comment">//    }</em>
<a name="103" href="#103">103</a> }
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